walking round and so on. Platform telescopic jacking cylinders directly , when you start the motor , the motor driven gear pump oil, oil by -way valve and solenoid channel input cylinders, telescopic cylinders will rise by section , when the crane wheel assemblies platform rose to a maximum height of system pressure rated working pressure is reached , then there is oil spill unloading valve , hydraulic maintained at a constant pressure of work, the one-way valve packing after the shutdown , the platform will remain at the maximum working position , according to the site 's operations platform height maximum height of any of the following position for aluminum cargo lift : high-quality high-strength aluminum alloy material, with beautiful crane wheel,crane wheels appearance, small size, light weight , smooth movements , safe and reliable. Widely used in factories, hotels , restaurants , railway stations , theaters , galleries and other places, is the maintenance of equipment , paint decoration , exchange best security partner lamps, appliances , cleaning and maintenance purposes.